EP1397017A4 - Portable communication equipment and channel capture method - Google Patents

Portable communication equipment and channel capture method

Info

Publication number
EP1397017A4
EP1397017A4 EP02733491A EP02733491A EP1397017A4 EP 1397017 A4 EP1397017 A4 EP 1397017A4 EP 02733491 A EP02733491 A EP 02733491A EP 02733491 A EP02733491 A EP 02733491A EP 1397017 A4 EP1397017 A4 EP 1397017A4
Authority
EP
European Patent Office
Prior art keywords
channel
capture
cdma signal
communication equipment
portable communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02733491A
Other languages
German (de)
French (fr)
Other versions
EP1397017A1 (en
Inventor
Hiroshi Tajiri
Satoru Sakai
Yasutaka Nakata
Takashi Gondoh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP1397017A1 publication Critical patent/EP1397017A1/en
Publication of EP1397017A4 publication Critical patent/EP1397017A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A cellular communication apparatus includes radio communication blocks (13, 14) for transmitting/receiving a CDMA signal, a base band modulation/demodulation block (16) for modulating/demodulating a CDMA signal to be transmitted/received up to a transmission signal, and a CPU (17) for controlling transmission/reception of the CDMA signal. When a set channel cannot be captured and the system is lost, capture of the channel is retried. Moreover, when the capture of the set channel is tried a predetermined number of times and an overhead message cannot be acquired, the channel setting is modified. Thus, even when an inappropriate channel is used and the system is lost, it is possible to capture an appropriate channel.
EP02733491A 2001-06-15 2002-06-12 Portable communication equipment and channel capture method Withdrawn EP1397017A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001182382 2001-06-15
JP2001182382A JP3695355B2 (en) 2001-06-15 2001-06-15 Mobile communication device and channel acquisition method
PCT/JP2002/005857 WO2002104061A1 (en) 2001-06-15 2002-06-12 Cellular communication apparatus and channel capture method

Publications (2)

Publication Number Publication Date
EP1397017A1 EP1397017A1 (en) 2004-03-10
EP1397017A4 true EP1397017A4 (en) 2006-08-16

Family

ID=19022494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02733491A Withdrawn EP1397017A4 (en) 2001-06-15 2002-06-12 Portable communication equipment and channel capture method

Country Status (5)

Country Link
US (1) US7299053B2 (en)
EP (1) EP1397017A4 (en)
JP (1) JP3695355B2 (en)
KR (1) KR20030019906A (en)
WO (1) WO2002104061A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8045981B2 (en) * 2005-08-18 2011-10-25 Qualcomm Incorporated System search to detect for a wireless communication network in a crowded frequency band
US8689025B2 (en) 2006-02-21 2014-04-01 Qualcomm Incorporated Reduced terminal power consumption via use of active hold state
US9461736B2 (en) 2006-02-21 2016-10-04 Qualcomm Incorporated Method and apparatus for sub-slot packets in wireless communication
BRPI0708106A2 (en) 2006-02-21 2011-05-17 Qualcomm Inc feedback channel design for multi-input and multi-output communication systems
US8077595B2 (en) 2006-02-21 2011-12-13 Qualcomm Incorporated Flexible time-frequency multiplexing structure for wireless communication
US8634354B2 (en) * 2007-10-31 2014-01-21 Qualcomm Incorporated Session establishment in multi-carrier data transmission systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029134A1 (en) * 1997-12-04 1999-06-10 Ericsson, Inc. Method for recovering service after registration failure in a cellular communication system
US6185422B1 (en) * 1998-06-19 2001-02-06 Nokia Mobile Phones Ltd Method and apparatus for transitioning between control channels in a cellular system
WO2001033881A1 (en) * 1999-10-25 2001-05-10 Simoco International Limited Method of updating a control channel list in mobile communications system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0837686A (en) * 1994-07-22 1996-02-06 Kokusai Electric Co Ltd Access method for radio telephone system, and radio telephone system and its access method
US5809419A (en) * 1994-12-14 1998-09-15 Motorola, Inc. Method for reducing channel scanning time
US5673259A (en) * 1995-05-17 1997-09-30 Qualcomm Incorporated Random access communications channel for data services
US6085085A (en) * 1996-03-27 2000-07-04 Qualcomm Incorporated Method and apparatus for performing preferred system selection
US5953665A (en) * 1996-12-26 1999-09-14 Nokia Mobile Phones Limited Method and apparatus for digital control channel (DCCH) scanning and selection in a cellular telecommunications network
US5940761A (en) * 1997-01-15 1999-08-17 Qaulcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
US6374103B1 (en) * 1998-09-30 2002-04-16 Lucent Technologies, Inc. Method and system for overhead message updates
US6321097B1 (en) * 1998-10-26 2001-11-20 Samsung Electronics Co., Ltd. Method for automatically switching modes in a dual mode cellular phone
JP2001115860A (en) * 1999-10-14 2001-04-24 Hitachi Ltd Combustor supporting structure
AU2002241594A1 (en) * 2000-12-05 2002-07-30 Denso Corporation Minimum interference multiple-access method and system for connection rescue

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029134A1 (en) * 1997-12-04 1999-06-10 Ericsson, Inc. Method for recovering service after registration failure in a cellular communication system
US6185422B1 (en) * 1998-06-19 2001-02-06 Nokia Mobile Phones Ltd Method and apparatus for transitioning between control channels in a cellular system
WO2001033881A1 (en) * 1999-10-25 2001-05-10 Simoco International Limited Method of updating a control channel list in mobile communications system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO02104061A1 *

Also Published As

Publication number Publication date
US7299053B2 (en) 2007-11-20
EP1397017A1 (en) 2004-03-10
US20030153327A1 (en) 2003-08-14
KR20030019906A (en) 2003-03-07
WO2002104061A1 (en) 2002-12-27
JP2002374562A (en) 2002-12-26
JP3695355B2 (en) 2005-09-14

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